NOARK® Electric B1 UL489 miniature circuit breakers are available in a complete range of amperages from 0.5A to 32A. Standard ratings of 10 kA at 480Y/277 Vac and 10 kA at 125 Vdc. These are suitable for branch circuit protection. 5-Year limited warranty.

Unit of Measure

Specifications

Brands

NOARK®

Number of Poles

1

Rated Current

5 A

Alternating Current (AC) Voltage

277 V480 V

Tripping Curve

B Curve (3-5 in.)

Termination Type

Box Lugs

Features

Features

  • Breakers mount on standard 35 mm DIN rail
  • Can be used in UL 489 or cUL under CSA C22.2 No. 5 applications
  • Field installable shunt trip and auxiliary switch
  • Available with provisions for ring tongue terminals
  • Module width of only 0.71 in (18 mm) per pole
  • Contact position indicator (red/green)
  • Possibility for locking the toggle in ON or OFF position

Typical Applications

Typical Applications

Branch Circuit Protection
  • Convenience receptacle circuits (internal/external)
  • Motor control circuits
  • Load circuits leaving the equipment (external)
  • HVACR equipment: heating, ventilation, air conditioning, refrigeration (internal/external)
  • PLC I/O points
  • Power supplies
  • Control instrumentation
  • Relays
  • UPS
  • Power conditioners

Certifications

Certifications

UL 489 File Number E355392 / IEC 60947-2

Standard for MCCB for feeder and branch circuit protection.
  • cUL under CSA C22.2 No. 5-16 standard for branch circuit protection.
  • UL 489 file number E355392 standard for connection terminals which allows the user to apply field wiring directly to the breaker.
  • IEC 60947-2 standard for industrial applications of circuit protection.
RoHS
  • These devices are RoHS compliant.